Ext.Net 1.X_读写配置文件

[摘要]

     有N个ERP数据库帐套，需要从XML文件中读取。

加载指定路径的XML

        /// <summary>        /// 取得帐套列表        /// </summary>        private void GetDBList()        {            List<object> data = new List<object>();            XmlDocument xmlDoc = new XmlDocument();            xmlDoc.Load(@"d:\db.xml");            XmlNode xn = xmlDoc.SelectSingleNode("Mydatabase");            XmlNodeList xnl = xn.ChildNodes;            string company = string.Empty;            string connectstring=string.Empty;              foreach (XmlNode xnf in xnl)            {                XmlElement xe = (XmlElement)xnf;                company = xe.GetAttribute("dispalyname");                connectstring = string.Format("Server={0};Database={1};uid={2};pwd={3}", xe.GetAttribute("Server"), xe.GetAttribute("Database"), xe.GetAttribute("uid"), xe.GetAttribute("pwd"));                data.Add(new { name = company, connectstring = connectstring });            }            this.DataBaseStore.DataSource = data;            this.DataBaseStore.DataBind();            this.cbxDb.SelectedIndex = 0;                    }

用户选择帐套修改.config

        /// <summary>        /// 确认帐套修改配置文件连接字符串        /// </summary>        /// <param name="sender"></param>        /// <param name="e"></param>        protected void Login_Click(object sender, DirectEventArgs e)        {            if (cbxDb.SelectedItem.Value.ToString() != "")            {                BaseConfig bc = new BaseConfig("Config/CurrentConnect.config");                bc.SaveConfig(this.cbxDb.SelectedItem.Value.Trim(),"ConnectString");                Response.Redirect("Index.aspx");                            }            else             {                X.Msg.Alert("提示","请选择帐套").Show();            }                   }

        /// <summary>        /// 写入配置文件 key value        /// </summary>        /// <param name="ConnenctionString"></param>        /// <param name="strKey"></param>        public  void SaveConfig(string ConnenctionString, string strKey)        {            XmlDocument doc = new XmlDocument();            //获得配置文件的全路径            string strFileName = HttpContext.Current.Server.MapPath(configPath);               doc.Load(strFileName);            //找出名称为“add”的所有元素            XmlNodeList nodes = doc.GetElementsByTagName("add");            for (int i = 0; i < nodes.Count; i++)            {                //获得将当前元素的key属性                XmlAttribute att = nodes[i].Attributes["key"];                //根据元素的第一个属性来判断当前的元素是不是目标元素                if (att.Value == strKey)                {                    //对目标元素中的第二个属性赋值                    att = nodes[i].Attributes["value"];                    att.Value = ConnenctionString;                    break;                }            }            //保存上面的修改            doc.Save(strFileName);        }        /// <summary>        /// 读取配置文件key-value值        /// </summary>        /// <param name="ConnenctionString"></param>        /// <param name="strKey"></param>        public string GetConfigKeyValue(string strKey)        {            XmlDocument doc = new XmlDocument();            string ConnectString = string.Empty;            doc.Load(HttpContext.Current.Server.MapPath(configPath));            //找出名称为“add”的所有元素            XmlNodeList nodes = doc.GetElementsByTagName("add");                 for (int i = 0; i < nodes.Count; i++)            {                //获得将当前元素的key属性                XmlAttribute att = nodes[i].Attributes["key"];                if (att.Value == strKey)                {                    ConnectString = nodes[i].Attributes["value"].Value.ToString();                }            }            return ConnectString;        }